What can I use to stop a rear main seal leak?

Whereas the Rear Main Sealer is less concentrated and specifically formulated exclusively for leaking rear main seals. If you are not 100% sure where the vehicle is leaking or there seem to be multiple leaks then we recommend using BlueDevil Oil Stop Leak.

Is it bad to add oil to rear main seal?

Many times the mechanics’ quotes for getting a rear main seal fixed are so high that it seems a better option to drive the vehicle and just add oil regularly to keep your car running. Here’s why that’s a bad Idea. While you are driving, the leaking oil will be distributed all over the bottom of your vehicle.

Can a gasket seal stop an oil leak?

Oil Leak Sealer Can’t Repair A Torn Or Worn Gasket. The way stop oil leak products work, depends on the brand you buy. There are some out there that claim to thicken the oil viscosity enough to stop the oil from getting by weak seals.

What causes an oil leak in the front of the car?

As such, this list is not comprehensive – it simply covers some of the most common leaks, such as an oil leak from the timing cover and an oil leak in the front of the engine. Engine oil leaks are usually the result of a bad seal or gasket, though they can be due to damaged parts, such as a cracked oil pan, as well.

What could cause a rear main seal to leak?

Rear main seal leak causes Worn main bearings. If your vehicle has worn main bearings, the crankshaft is able to move excessively inside the bearings which will stretch and move the rear main seal while Clogged or blocked PCV system. Most rear main seals have a lip that rides on the shaft. Engine oil condition. Crankshaft condition. Misalignment issues. Seal coating.

What does a leak in the rear main seal mean?

A rear main seal leak is among the worst things that can happen to any vehicle because the rear main seal is very hard to reach and it requires much of your engine to be disassembled. On most modern engines, the seal’s failure is due to a condition inside the engine or a component connected to the back of the engine, and is most common in older cars.

How do you fix a rear seal leak?

The best way to fix a leaking rear main seal is to recondition the seal that’s currently in your vehicle. Adding BlueDevil Rear Main Sealer to your engine oil will allow your rear main seal to be reconditioned as you drive your vehicle in 2 days or less.

What damage can a rear main seal leak cause?

Damage to an automatic transmission isn’t likely, but a leaking rear main seal on a stick-shift car can cause the clutch to slip and ultimately damage the clutch and pressure plate .

How much does a rear main seal leak cost?

Rear main seal leaks are often killers of engines due to their complicated replacement procedure. The actual seal that is broken is often a relatively low-cost part, often under $50 dollars but sometimes as low as $15.

Which is better bluedevil or valve cover gasket leak?

BlueDevil Oil Stop Leak is more concentrated and is the universal application that will work for various leaks such as oil pan leaks, rear main leaks, valve cover gasket leaks, etc. Whereas the Rear Main Sealer is less concentrated and specifically formulated exclusively for leaking rear main seals.

How does bluedevil rear main seal fix leaks?

Rather than simply clogging up leaks, BlueDevil Rear Main Sealer is designed to revive and rejuvenate the rear main seal in your motor so it can do the job it was originally intended to do. BlueDevil Rear Main Sealer is a versatile rear main seal fix for seals that are dried, cracked, or shrunken due to age or use.

Where does the oil leak from on a small block Chevy?

Since you have it on both sides of the engine it sounds like the valve cover gaskets, if you can remove a spark plug and find oil on the threads you found the problem. The oil will leak out from under the gaskets, down the head and fly back from there.

Is there an oil leak in my GMC Suburban?

In my case, the entire engine compartment of my 1975 GMC Suburbanshowed evidence of an oil leak after I rebuilt my engine. Virtually everything was lightly coated with oil and getting very grimy in short order.

Can a leaking main seal cause an oil leak?

Unfortunately, oil can easily leak from the rear main seal due to its placement at the back of the engine. The dangers of rear main leaks are twofold. For one, a leaky rear main seal will rapidly drain the oil supply. For today’s vehicles, the rear main seal comes in one piece.

What happens if you have a fast leak in the rear seal?

A fast leak will lower your engine oil level to dangerous levels very quickly, which can lead to permanent engine damage. The possibility of a fast leak is very likely, as the rear main seal is in a place that gets a lot of oil thrown at it and has the added wear of the crankshaft spinning inside.

How does bar’s leaks concentrated rear main seal repair work?

Bar’s Leaks Concentrated Rear Main Seal Repair restores the seal to like-new condition, and also contains additives to stop leaks in severely worn seals and crankshafts. Not to mention, it works with ALL gasoline and diesel engines using conventional, high mileage and synthetic oil.

What can I use to stop rear main seal leak?

Based on your description, we would recommend using the BlueDevil Oil Stop Leak. The BlueDevil Oil Stop Leak is the universal application and will work for oil pan leaks, rear main leaks, valve seal leaks, transmission leaks, power steering leaks, etc.

What causes a leak in the rear main seal?

Most rear main seal leaks are caused by a combination of normal wear in the crankshaft and seal combined with the drying, hardening and shrinking of the main seal. Bar’s Leaks Concentrated Rear Main Seal Repair restores the seal to like-new condition, and also contains additives to stop leaks in severely worn seals and crankshafts.

Which is bluedevil for rear main seal leak?

The BlueDevil Oil Stop Leak is the universal application and will work for oil pan leaks, rear main leaks, valve seal leaks, transmission leaks, power steering leaks, etc. Whereas the Rear Main Sealer is specifically formulated for the rear main seal.

Can a diesel engine leak from the rear main seal?

If oil is leaking from the rear main engine seal it would be the same colour as what’s on the dipstick. Don’t know about the Diesel engine, but the rear main on a petrol motor is like an inner wheel bearing oil seal only bigger. From memory a genuine Tojo one is about $80.

How to change your rear main seal-YouTube?

In this video, we show you how to change your rear main seal. When this seal goes bad, it can cause oil to start leaking out from the back of the engine, and has to be replaced. You can now get your very own budget boosting window sticker! Click the link below and you will be taken to our eBay page! http://www.ebay.com/itm/251593397621?…

What to do about a rear main seal leak?

You can add BlueDevil rear main sealer to stop your rear main seal leak and it can safely stay in your engine oil until your next oil change, if not, Blue Devil Oil Stop Leakworks great on oil leaks as well. Find BlueDevil Rear Main Sealer online here, or at your local auto parts stores like:

What is the rear main seal?

The rear main seal is what seals the crankshaft to the engine block and keeps engine oil from leaking out around the crank. It’s called the rear main seal because it seals the rear of the crank shaft where it bolts to the transmission.

What causes the rear main seal to fail?

Heat and engine vibration is responsible for causing the rear main seal to fail. This is because the seal is made of rubber and can become hard and brittle causing the lip of the seal to fail allowing engine oil to bypass the seal and leak outside of the engine.

What can I use to stop a rear main seal leak?